"30 Rock": For a show that never scored high in the ratings, "30 Rock" has had a surprisingly big impact on comedy and pop culture. Its high joke ratio, gleeful absurdity, insiders' perspective on television, devotion to mocking sitcom conventions, and cast of flawed -- to put it mildly -- characters have proven remarkably durable. While a show like "Arrested Development" did some of the same things, Tina Fey and the "30 Rock" cast and writers managed to keep their smart, silly show both consistently hilarious and awkwardly touching. After seven award-strewn seasons, they're wrapping it up, and I wouldn't miss it. (8 p.m., NBC/8)

"Do No Harm": Oh, man, not another show about a brilliant neurosurgeon who has a hidden, alternate self with a different name and creepy personality. Steven Pasquale stars in the debut of this new, "Jekyll and Hyde"-style series. The more I think about it, the more it seems like a fake show that "30 Rock" would have made up as a Kabletown timeslot-filler. (10 p.m., NBC/8)